AAON RQ SERIES Installation Operation & Maintenance

Brand: AAON

Model: RQ SERIES

Category: Split-system air conditioners

Type: Installation Operation & Maintenance

RQ SERIES

Packaged Rooftop Units, Heat Pumps,

& Outdoor Air Handling Units

Installation, Operation,

& Maintenance

o Do not store gasoline or other flammable

vapors and liquids in the vicinity of this or any

other appliance

o WHAT TO DO IF YOU SMELL GAS

 Do not try to light any appliance.



Do not touch any electrical switch; do not

use any phone in your building.

 Leave the building immediately.



Immediately call your gas supplier from a

phone remote from the building. Follow the

gas supplier’s instructions.



If you cannot reach your gas supplier, call

the fire department.

Startup and service must be performed by a

Factory Trained Service Technician.

WARNING

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings

exactly could result in serious

injury, death or property damage.

Be sure to read and understand

the installation, operation and

service instructions in this manual.

Improper installation, adjustment,

alteration, service or maintenance

can cause serious injury, death or

property damage.

A copy of this IOM should be kept

with the unit.

WARNING

Table of Contents

AAON® RQ Series Features and Options Introduction ................................................................. 7

Safety .............................................................................................................................................. 8

RQ Series Feature String Nomenclature ....................................................................................... 13

General Information ...................................................................................................................... 22

Codes and Ordinances .............................................................................................................. 22

Receiving Unit .......................................................................................................................... 23

Packaged Direct Expansion (DX) Units ................................................................................... 24

Gas or Electric Heating ............................................................................................................. 25

Wiring Diagrams ....................................................................................................................... 26

Condensate Drain Pan ............................................................................................................... 26

Installation..................................................................................................................................... 27

Unit Location ............................................................................................................................ 27

Setting the Curb ........................................................................................................................ 27

Forklifting the Unit ................................................................................................................... 30

Lifting the Unit ......................................................................................................................... 31

Vertical Duct Connection ......................................................................................................... 32

Seismic Curb Installation .......................................................................................................... 33

Horizontal Duct Connection ..................................................................................................... 35

Outside Air Rain Hood ............................................................................................................. 35

Metal Mesh Filters .................................................................................................................... 36

Electrical ................................................................................................................................... 37

Variable Speed Compressors ................................................................................................ 39

Thermostat Control Wiring ................................................................................................... 39

Gas Heating ............................................................................................................................... 40

Maximum Piping Capacities ................................................................................................. 40

Piping Sizing Examples ........................................................................................................ 41

Inlet and Manifold Pressures ................................................................................................ 41

Gas Pressure Regulator & Overpressure Protection Device ................................................. 42

Additional Gas Piping Considerations .................................................................................. 42

Leak Testing .......................................................................................................................... 44

Refrigerant-to-Water Heat Exchanger ...................................................................................... 44

Water-Source Heat Pump Applications ................................................................................ 44

Open Loop Applications ....................................................................................................... 45

Freezing Water in the Heat Exchanger ................................................................................. 45

Water Piping ......................................................................................................................... 46

Condensate Drain Piping .......................................................................................................... 48

Discharge and Suction Line Piping .......................................................................................... 48

Heating Coils ............................................................................................................................ 51

Chilled Water Coil .................................................................................................................... 51

Electric Preheat ......................................................................................................................... 52

Status Display Screens .......................................................................................................... 52

System Setting Screens ......................................................................................................... 53

LED Flash Alarm Codes ....................................................................................................... 55

Operation ............................................................................................................................... 55

Energy Recovery Units ............................................................................................................. 56

Startup ........................................................................................................................................... 64

Filters ........................................................................................................................................ 64

Adjusting Refrigerant Charge ................................................................................................... 64

Checking Liquid Sub-Cooling .............................................................................................. 65

Checking Evaporator Superheat............................................................................................ 65

Adjusting Sub-Cooling and Superheat Temperatures ........................................................... 65

Gas Heater Instructions ............................................................................................................. 67

Freeze Stat Startup .................................................................................................................... 68

Supply Fan EC Motor Startup .................................................................................................. 68

Condenser Fan EC Motor Startup ............................................................................................. 69

Adjustable Fan Cycling Switch Procedure ............................................................................... 71

Operation....................................................................................................................................... 73

Thermostat Operation ............................................................................................................... 73

Packaged DX Cooling Operation and Control ......................................................................... 73

Gas Heater Operation ................................................................................................................ 73

Electric Heating Operation ....................................................................................................... 74

Steam or Hot Water Preheating and Heating Operation ........................................................... 74

Modulating Electric Preheat ..................................................................................................... 74

Chilled Water or Non-Compressorized DX Cooling Operation ............................................... 74

Maintenance .................................................................................................................................. 74

Gas Heating ............................................................................................................................... 74

Gas Heat Exchanger Removal .................................................................................................. 75

DX Cooling ............................................................................................................................... 76

Condenser Fan .......................................................................................................................... 76

Condensate Drain Pans ............................................................................................................. 76

Evaporator Coil ......................................................................................................................... 77

E-Coated Coil Cleaning ............................................................................................................ 77

Microchannel Coil Cleaning ..................................................................................................... 79

Supply Fan ................................................................................................................................ 81

Variable Capacity Compressor Controller ................................................................................ 84

Filter Replacement .................................................................................................................... 85

Replacement Parts ..................................................................................................................... 86

Appendix A - Heat Exchanger Corrosion Resistance ................................................................... 87

Appendix B - Thermistor Temperature vs. Resistance Values ..................................................... 89

RQ Series Startup Form ................................................................................................................ 90

Maintenance Log .......................................................................................................................... 94

Literature Change History............................................................................................................. 95

R94490 · Rev. F · 170925

Index of Tables and Figures

Tables:

Table 1 - Electric and Gas Heating Capacities ............................................................................. 25

Table 2 - Auxiliary Electric Heating Capacities ........................................................................... 26

Table 3 - Unit Clearances ............................................................................................................. 27

Table 4 - Single Circuited Variable Speed Compressor Frequency Range .................................. 39

Table 5 - Control Wiring............................................................................................................... 39

Table 6 - 2-6 ton Gas Connections ............................................................................................... 40

Table 7 - Natural Gas (ft

/hr) ........................................................................................................ 40

Table 8 - Propane (kBtu/hr) .......................................................................................................... 41

Table 9 - Gas Piping Supports ...................................................................................................... 42

Table 10 - Glycol Freezing Points ................................................................................................ 46

Table 11 - Condenser Water Connections .................................................................................... 46

Table 12 - Hot Water Coil Connection Sizes................................................................................ 51

Table 13 - Steam Coil Connection Sizes ...................................................................................... 51

Table 14 - Chilled Water Coil Connection Sizes .......................................................................... 51

Table 15 - Stages of Electric Preheat ............................................................................................ 54

Table 16 - Acceptable Refrigeration Circuit Values..................................................................... 65

Table 17 - R-410A Refrigerant Temperature-Pressure Chart ....................................................... 66

Table 18 - EC Condenser Fan Cycling Options ............................................................................ 70

Table 19 - Demand Signal vs. Compressor Capacity Modulation ................................................ 84

Table 20 - RQ Series 2-6 ton Pre Filters ....................................................................................... 85

Table 21 - RQ Series 2-6 ton Unit Filters ..................................................................................... 86

Table 22 - RQ Series 2-6 ton Energy Recovery Wheel Filters ..................................................... 86

Figures:

Figure 1 - Lockable Handle .......................................................................................................... 23

Figure 2 - RQ Series Orientation .................................................................................................. 27

Figure 3 - RQ Cabinet Standard and Power Exhaust Gasket Locations ....................................... 29

Figure 4 - Forklifting an RQ Series Unit from the Side ............................................................... 30

Figure 5 - Forklifting an RQ Series Unit from the Front .............................................................. 30

Figure 6 - Lifting Details of a 2-6 ton Standard or Power Exhaust Unit ...................................... 31

Figure 7 - Lifting Details of a 2-6 ton Energy Recovery Wheel Unit .......................................... 31

Figure 8 - Vertical Duct Connection ............................................................................................. 32

Figure 9 - Solid Bottom Seismic Curb with Filters ...................................................................... 33

Figure 10 - Seismic Solid Bottom Curb without Filters Cross Section ........................................ 34

Figure 11 - Seismic Solid Bottom Curb without Filters Detail A................................................. 34

Figure 12 - Seismic Solid Bottom Curb without Filters Detail B ................................................. 34

Figure 13 - Seismic Rigid Mount Curb Cross Section ................................................................. 35

Figure 14 - Horizontal duct connections ....................................................................................... 35

Figure 15 - RQ Series unit Closed Rain Hood .............................................................................. 36

Figure 16 - RQ Series unit Open Rain Hood ................................................................................ 36

Figure 17 - Rain Hood with Metal Mesh Filter Rack Installation ................................................ 36

Figure 18 - Unit Base Utility Entry............................................................................................... 37

Figure 19 - Back View of Power Switch from Control Compartment ......................................... 37

Figure 20 - RQ Series Gas Heat Exchanger .................................................................................. 40

Figure 21 - Example 2-6 ton through the Base Gas Piping .......................................................... 43

Figure 22 - Post Corner Hole Location ......................................................................................... 49

Figure 23 - Post Back Hole Location ............................................................................................ 49

Figure 24 - Post Corner Hole Piping............................................................................................. 50

Figure 25 - Post Back Hole Piping ............................................................................................... 50

Figure 26 - Preheat Controller ...................................................................................................... 52

Figure 27 - Gas Heater Instructions .............................................................................................. 67

Figure 28 - PIN Connectors on EC Supply Fan Motor Electronics .............................................. 68

Figure 29 - Gas Heat Exchanger ................................................................................................... 76

Figure 30 - Removal of a Condenser Fan Assembly .................................................................... 76

Figure 31 - Evaporator Coil Access .............................................................................................. 77

Figure 32 - 2-6 ton Supply Fan ..................................................................................................... 81

Figure 33 - RQ Supply Fan Removal Bolts .................................................................................. 81

Figure 34 - RQ Supply Fan Removal Slide .................................................................................. 82

Figure 35 - Variable Capacity Compressor Controller ................................................................. 84

Figure 36 - Compressor Controller Flash Code Details................................................................ 85

Figure 37 - RQ Series 2-6 ton Standard Filter Layout .................................................................. 86

AAON® RQ Series Features and Options Introduction

Energy Efficiency

 Direct Drive Backward Curved Plenum

Supply Fans

 Variable Capacity R-410A Scroll

Compressors

 Airside Economizers

 Factory Installed AAONAIRE

Energy

Recovery Wheels

 Double Wall Rigid Polyurethane Foam

Panel Construction, R-13 Insulation

 Modulating Natural Gas Heaters

 Modulating/SCR Electric Heaters

 Premium Efficiency Motors

 Variable Speed Supply/ Exhaust Fans

 Air-Source, Water-Source and

Geothermal Heat Pumps

Indoor Air Quality

 100% Outside Air

 Constant Volume Outside Air Control

 Economizer CO

Override

 High Efficiency Filtration

 Double Wall Rigid Polyurethane Foam

Panel Construction, R-13 Insulation

 Interior Corrosion Protection

Humidity Control

 High Capacity Cooling Coils

 Variable Capacity Compressors

 Factory Installed AAONAIRE Total

Energy Recovery Wheels

 Modulating Hot Gas Reheat

Safety

 Burglar Bars

 Freeze Stats

 Hot Water/Steam Preheat Coils

 Electric Preheat

 Phase and Brown Out Protection

 Supply/Return Smoke Detectors

 Supply/Return Firestats

Installation and Maintenance

 Clogged Filter Switch

 Color Coded Wiring Diagram

 Compressors in Isolated Compartment

 Compressor Isolation Valves

 Convenience Outlet

 Direct Drive Supply Fans

 Hinged Access Doors with Lockable

Handles

 Magnehelic Gauge

 Service Lights

 Sight Glass

System Integration

 Chilled Water Cooling Coils

 Controls by Others

 Electric/Natural Gas/LP Heating

 Hot Water/Steam Heating Coil

 Non-Compressorized DX Coils

Environmentally Friendly

 Airside Economizers

 Factory Installed AAONAIRE Energy

Recovery Wheels

 R-410A Refrigerant

Extended Life

 5 Year Compressor Warranty

 15 Year Aluminized Steel Heat

Exchanger Warranty

 25 Year Stainless Steel Heat Exchanger

Warranty

 Interior Corrosion Protection

 Polymer E-Coated Coils - 5 Year

Warranty

 Stainless Steel Coil Casing

 Stainless Steel Drain Pans

Safety

Attention should be paid to the following statements:

NOTE - Notes are intended to clarify the unit installation, operation and maintenance.

CAUTION - Caution statements are given to prevent actions that may result in

equipment damage, property damage, or personal injury.

WARNING - Warning statements are given to prevent actions that could result in

equipment damage, property damage, personal injury or death.

DANGER - Danger statements are given to prevent actions that will result in equipment

damage, property damage, severe personal injury or death.

ELECTRIC SHOCK, FIRE OR

EXPLOSION HAZARD

Failure to follow safety warnings

exactly could result in dangerous

operation, serious injury, death or

property damage.

Improper servicing could result in

dangerous operation, serious injury,

death or property damage.



Before servicing, disconnect all

electrical power to the furnace.

More than one disconnect may be

provided.



When servicing controls, label all

wires prior to disconnecting.

Reconnect wires correctly.



Verify proper operation after

servicing. Secure all doors with

key-lock or nut and bolt.

WARNING

WHAT TO DO IF YOU SMELL GAS

 Do not try to turn on unit.

 Shut off main gas supply.

 Do not touch any electric switch.



Do not use any phone in the

building.



Never test for gas leaks with an

open flame.



Use a gas detection soap solution

and check all gas connections

and shut off valves.

CAUTION

Electric shock hazard. Before

servicing, shut off all electrical power

to the unit, including remote

disconnects, to avoid shock hazard

or injury from rotating parts. Follow

proper Lockout-Tagout procedures.

WARNING

FIRE, EXPLOSION OR CARBON

MONOXIDE POISONING HAZARD

Failure to replace proper controls

could result in fire, explosion or

carbon monoxide poisoning. Failure

to follow safety warnings exactly

could result in serious injury, death or

property damage. Do not store or use

gasoline or other flammable vapors

and liquids in the vicinity of this

appliance.

WARNING

ROTATING COMPONENTS

Unit contains fans with moving parts

that can cause serious injury. Do not

open door containing fans until the

power to the unit has been

disconnected and fan wheel has

stopped rotating.

WARNING

GROUNDING REQUIRED

All field installed wiring must be

completed by qualified personnel.

Field installed wiring must comply

with NEC/CEC, local and state

electrical code requirements. Failure

to follow code requirements could

result in serious injury or death.

Provide proper unit ground in

accordance with these code

requirements.

WARNING

During installation, testing, servicing

and troubleshooting of the equipment

it may be necessary to work with live

electrical components. Only a

qualified licensed electrician or

individual properly trained in handling

live electrical components shall

perform these tasks.

Standard NFPA-70E, an OSHA

regulation requiring an Arc Flash

Boundary to be field established and

marked for identification of where

appropriate Personal Protective

Equipment (PPE) be worn, should be

followed.

WARNING

VARIABLE FREQUENCY DRIVES

Do not leave VFDs unattended in

hand mode or manual bypass.

Damage to personnel or equipment

can occur if left unattended. When in

hand mode or manual bypass mode

VFDs will not respond to controls or

alarms.

WARNING

Electric motor over-current protection

and overload protection may be a

function of the Variable Frequency

Drive to which the motors are wired.

Never defeat the VFD motor overload

feature. The overload ampere setting

must not exceed 115% of the electric

motors FLA rating as shown on the

motor nameplate.

CAUTION

UNIT HANDLING

To prevent injury or death lifting

equipment capacity shall exceed unit

weight by an adequate safety factor.

Always test-lift unit not more than 24

inches high to verify proper center of

gravity lift point to avoid unit damage,

injury or death.

WARNING

Failure to properly drain and vent

coils when not in use during freezing

temperature may result in coil and

equipment damage.

CAUTION

Rotation must be checked on all

MOTORS AND COMPRESSORS of

3 phase units at startup by a qualified

service technician. Scroll

compressors are directional and can

be damaged if rotated in the wrong

direction. Compressor rotation must

be checked using suction and

discharge gauges. Fan motor rotation

should be checked for proper

operation. Alterations should only be

made at the unit power connection

CAUTION

Do not use oxygen, acetylene or air

in place of refrigerant and dry

nitrogen for leak testing. A violent

explosion may result causing injury or

death.

WARNING

WATER PRESSURE

Prior to connection of condensing

water supply, verify water pressure is

less than maximum pressure shown

on unit nameplate. To prevent injury

or death due to instantaneous

release of high pressure water, relief

valves should be field supplied on

system water piping.

WARNING

Always use a pressure regulator,

valves and gauges to control

incoming pressures when pressure

testing a system. Excessive pressure

may cause line ruptures, equipment

damage or an explosion which may

result in injury or death.

WARNING

To prevent damage to the unit, do not

use acidic chemical coil cleaners. Do

not use alkaline chemical coil

cleaners with a pH value greater than

8.5, after mixing, without first using

an aluminum corrosion inhibitor in the

cleaning solution.

CAUTION

Do not clean DX refrigerant coils with

hot water or steam. The use of hot

water or steam on refrigerant coils

will cause high pressure inside the

coil tubing and damage to the coil.

CAUTION

Some chemical coil cleaning

compounds are caustic or toxic.

Use

these substances only in accordance

with the manufacturer’s usage

instructions. Failure to follow

instructions may result in equipment

damage, injury or death.

WARNING

Door compartments containing

hazardous voltage or rotating parts

are equipped with door latches to

allow locks. Door latch are shipped

with nut and bolts requiring tooled

access. If you do not replace the

shipping hardware with a pad lock

always re-install the nut & bolt after

closing the door.

CAUTION

Cleaning the cooling tower or

condenser water loop with harsh

chemicals such as hydrochloric acid

(muriatic acid), chlorine or other

chlorides, can damage the

refrigerant-to-water heat exchanger.

Care should be taken to avoid

allowing chemicals to enter the

refrigerant-to-water heat exchanger.

See Appendix A - Heat Exchanger

Corrosion Resistance for more

information.

CAUTION

OPEN LOOP APPLICATIONS

Failure of the condenser as a result

of chemical corrosion is excluded

from coverage under AAON Inc.

warranties and the heat exchanger

manufacturer’s warranties.

WARNING

WATER FREEZING

Failure of the condenser due to

freezing will allow water to enter the

refrigerant circuit and will cause

extensive damage to the refrigerant

circuit components. Any damage to

the equipment as a result of water

freezing in the condenser is excluded

from coverage under AAON

warranties and the heat exchanger

manufacturer warranties.

WARNING

COMPRESSOR CYCLING

5 MINUTE MINIMUM OFF TIME

To prevent motor overheating

compressors must cycle off for a

minimum of 5 minutes.

5 MINUTE MINIMUM ON TIME

To maintain the proper oil level

compressors must cycle on for a

minimum of 5 minutes.

The cycle rate must not exceed 6

starts per hour.

WARNING

1. Startup and service must be performed

by a Factory Trained Service

Technician.

2. Use only with type of the gas approved

for the furnace. Refer to the furnace

rating plate.

3. The unit is for outdoor use only. See

General Information section for more

information.

4. Provide adequate combustion ventilation

air to the furnace. If a vent duct

extension is used, a class III approved

vent is required. See the Locating Units

and Gas Heating sections of the

Installation section of the manual.

5. Always install and operate furnace

within the intended temperature rise

range and duct system external static

pressure (ESP) as specified on the unit

nameplate.

6. The supply and return air ducts must be

derived from the same space. It is

recommended ducts be provided with

access panels to allow inspection for

duct tightness. When a down flow duct

is used with electric heat, the exhaust

duct should be an L shaped duct.

7. Clean furnace, duct and components

upon completion of the construction

setup. Verify furnace operating

conditions including input rate,

temperature rise and ESP.

8. Every unit has a unique equipment

nameplate with electrical, operational,

and unit clearance specifications.

Always refer to the unit nameplate for

specific ratings unique to the model you

have purchased.

9. READ THE ENTIRE INSTALLATION,

OPERATION AND MAINTENANCE

MANUAL. OTHER IMPORTANT

SAFETY PRECAUTIONS ARE

PROVIDED THROUGHOUT THIS

MANUAL.

10. Keep this manual and all literature

safeguarded near or on the unit.

RQ Series Feature String Nomenclature

VLT

CONFIG

14A

14B

- 0 0 5 - 3 - V - B B 0 1 - 3 3 4 :

0 0 0 -

0 B - P J C - 0 B

- 0

0 0 0 0 L - 0 0 - 0 0 B 0 0 0 0 0 B

Model Options

Unit Feature Options

GEN

SIZE

BASE MODEL

SERIES AND GENERATION

UNIT SIZE

002 = 2 ton Capacity

003 = 3 ton Capacity

004 = 4 ton Capacity

005 = 5 ton Capacity

006 = 6 ton Capacity

VOLTAGE

1 = 230V/1Φ/60Hz

2 = 230V/3Φ/60Hz

3 = 460V/3Φ/60Hz

4 = 575V/3Φ/60Hz

6 = 380V/3Φ/50Hz

8 = 208V/3Φ/60Hz

9 = 208V/1Φ/60Hz

DISCHARGE/RETURN CONFIGURATION

AND INTERIOR CORROSION PROTECTION

V = Vertical Discharge and Return

H = Horizontal Discharge and Return

J = Option H + Interior Corrosion Protection

W = Option V + Interior Corrosion Protection

K = Vertical Discharge and Horizontal Return

L = Option K + Interior Corrosion Protection

M = Horizontal Discharge and Vertical Return

N = Option M + Interior Corrosion Protection

Model Option A: COOLING/HEAT

PUMP

A1: REFRIGERANT STYLE

0 = Air Handling Unit

B = R-410A - Non-Compressorized DX Air Handling

Unit

C = R-410A - Standard Efficiency

E = R-410A Variable Capacity Scroll Compressor -

High Efficiency

F = R-410A Variable Capacity Scroll Compressor -

Standard Efficiency

G = R-410A Two-Step Compressor - High Efficiency

H = R-410A Two-Step Compressor - Standard

Efficiency

K = R-410A Variable Speed Scroll Compressor –

High Efficiency

A2: UNIT CONFIGURATION

0 = No Cooling

A = Air-Cooled Cond. + Std Evap. Coil

B = Air-Cooled Cond. + 6 Row Evap. Coil

J = Water-Cooled Cond. + Std Evap. Coil

K = Water-Cooled Cond. + 6 Row Evap. Coil

U = Chilled Water Coil - 4 Row

W = Chilled Water Coil - 6 Row

2 = Non-Compressorized + Std Evap. Coil

4 = Non-Compressorized + 6 Row Evap. Coil

6 = Air-Source Heat Pump

7 = Water-Source/Geothermal Heat Pump

A3: COIL COATING

0 = Standard

1 = Polymer E-Coated Evap. and Cond. Coils

8 = Polymer E-Coated Cond. Coil

9 = Polymer E-Coated Cooling Coil

A = Stainless Steel Evap. Coil Casing + Polymer E-

Coated Cond. Coil

D = Stainless Steel Cooling Coil Casing

RQ Series Feature String Nomenclature

VLT

CONFIG

14A

14B

- 0 0 5 - 3 - V - B B 0 1 - 3 3 4 :

0 0 0 -

0 B - P J C - 0 B

- 0

0 0 0 0 L - 0 0 - 0 0 B 0 0 0 0 0 B

Model Options

Unit Feature Options

GEN

SIZE

A4: COOLING/HEAT PUMP STAGING

0 = No Cooling

1 = 1 Stage

2 = 2 Stage

9 = Variable Capacity

B = 1 Stage + 1 Stage Auxiliary Heat

C = 2 Stage + 1 Stage Auxiliary Heat

E = Modulating - Lead VCC + 1 Stage Aux. Heat

H = Single Serpentine 8 fpi

J = Half Serpentine 8 fpi

K = Single Serpentine 10 fpi

L = Half Serpentine 10 fpi

M = Single Serpentine 12 fpi

N = Half Serpentine 12 fpi

P = 1 Stage + 2 Stage Auxiliary Heat

Q = 2 Stage + 2 Stage Auxiliary Heat

S = Modulating - Lead VCC + 2 Stage Aux. Heat

U = 1 Stage + 4 Stage Auxiliary Heat

V = 2 Stage + 4 Stage Auxiliary Heat

Y = Modulating - Lead VCC + 4 Stage Aux. Heat

Model Option B: HEATING

B1: HEATING TYPE

0 = No Heating

1 = Electric Heat

2 = Natural Gas Aluminized

3 = Natural Gas Stainless Steel

4 = High Altitude Natural Gas Aluminized

5 = High Altitude Natural Gas Stainless Steel

6 = LP Gas Aluminized

7 = LP Gas Stainless Steel

8 = High Altitude LP Gas Aluminized

9 = High Altitude LP Gas Stainless Steel

C = Steam Distributing Standard

D = Steam Distributing Polymer E-Coated

E = Hot Water Standard

F = Hot Water Polymer E-Coated

B2: HEATING DESIGNATION

0 = No Heating

1 = Heat 1

2 = Heat 2

3 = Heat 3

4 = Heat 4

5 = Heat 5

7 = Heat 7

H = 1 Row Coil

J = 2 Row Coil

B3: HEATING STAGING

0 = No Heating

1 = 1 Stage

2 = 2 Stage

3 = 3 Stage

4 = 4 Stage

9 = Modulating Gas/SCR Electric

A = SCR Electric, 0-10V External Control

B = High Turndown Modulating Gas

H = Single Serpentine 8 fpi

J = Half Serpentine 8 fpi

M = Single Serpentine 12 fpi

N = Half Serpentine 12 fpi

RQ Series Feature String Nomenclature

VLT

CONFIG

14A

14B

- 0 0 5 - 3 - V - B B 0 1 - 3 3 4 : A 0 0 0 -

0 B - P J C - 0 B

- 0

0 0 0 0 L - 0 0 - 0 0 B 0 0 0 0 0 B

Model Options

Unit Feature Options

GEN

SIZE

Feature 1: RETURN/OUTSIDE AIR

1A: RETURN/OUTSIDE AIR SECTION

0 = Manually Adjustable OA Opening + RA Opening

A = Economizer

B = Econ + Power Exhaust

F = Low cfm Total Energy Recovery Wheel

G = Low cfm Total ERW + Bypass Damper

H = Low cfm Sensible ERW

J = Low cfm Sensible ERW + Bypass Damper

K = 100% Outside Air - No Return Air Opening

L = Motorized Outside Air Damper + RA Opening

M = Motorized Outside Air Damper - No RA

Opening

N = Empty ERW Option Box- No Power Exhaust

P = Empty ERW Option Box + Power Exhaust

Q = Low cfm Total Fixed Plate Energy Recovery

R = Low cfm Total Fixed Plate Energy Recovery +

Bypass Damper

S = Low cfm Sensible Fixed Plate Energy Recovery

T = Low cfm Sensible Fixed Plate Energy Recovery

+ Bypass Damper

U = High cfm Total Fixed Plate Energy Recovery

V = High cfm Total Fixed Plate Energy Recovery +

Bypass Damper

W = High cfm Sensible Fixed Plate Energy Recovery

Y = High cfm Sensible Fixed Plate Energy Recovery

+ Bypass Damper

5 = 100% Return Air

1B: RETURN/EXHAUST AIR BLOWER

CONFIGURATION

0 = Standard – None

A = 1 Blower + Standard Eff. Motor

C = 1 Blower + Premium Eff. Motor

E = 1 Blower + Premium Eff. Motor + 1 VFD

H = 1 Blower + High Efficiency EC Motor

J = 1 Blower + Single Phase Motor + Speed Control

K = Option E + Shaft Grounding

1C: RETURN/EXHAUST AIR BLOWER

0 = Standard - None

B = 15” Backward Curved Plenum

C = 18.5” Backward Curved Plenum

J = 15” Backward Curved Plenum - 70% Width

K = 18.5” Backward Curved Plenum - 60% Width

N= 16” Axial Flow

1D: RETURN/EXHAUST AIR BLOWER

MOTOR

0 = Standard - None

A = 0.25 hp - 850 rpm

B = 0.5 hp - 1075 rpm

C = 1 hp - 1750 rpm

D = 2 hp - 1760 rpm

W = 0.75 hp - 1760 rpm

Z = 0.167 hp - 825 rpm

Feature 2: OUTSIDE AIR CONTROL

0 = Standard - None

A = 3 Position Actuator - Sensible Limit

B = 3 Position Actuator - Enthalpy Limit

C = Fully Modulating Actuator - Sensible Limit

D = Fully Modulating Actuator - Enthalpy Limit

E = DDC Actuator

M = 3 Pos. Act. - Sensible Limit + CO

Override

N = 3 Pos. Act. - Enthalpy Limit + CO

Override

P = Fully Mod. Act. - Sensible + CO

Override

Q = Fully Mod. Act. - Enthalpy + CO

Override

R = DDC Actuator + CO

Override

S = Dual Minimum Position Potentiometers + Fully

Mod. Act. - Sensible Limit

T = Dual Minimum Position Potentiometers + Fully

Mod. Act. - Enthalpy Limit

U = 2 Position Actuator

Y = Fault Detection and Diagnostics Controller

(FDD) - Sensible Limit

Z = FDD - Enthalpy Limit

1 = FDD Sensible Changeover + CO2 Override

2 = FDD Enthalpy Changeover + CO2 Override

Feature 3: HEAT OPTIONS

0 = Standard - None

E = Discharge Air Override

K = Auxiliary Heat K

L = Auxiliary Heat L

M = Auxiliary Heat M

N = Auxiliary Heat N

RQ Series Feature String Nomenclature

VLT

CONFIG

14A

14B

- 0 0 5 - 3 - V - B B 0 1 - 3 3 4 :

0 0 0 -

0 B - P J

- 0 B A -

0 0 0 0 L - 0 0 - 0 0 B 0 0 0 0 0 B

Model Options

Unit Feature Options

GEN

SIZE

Feature 4: MAINTENANCE OPTIONS

0 = Standard - None

A = Field Wired 115V Outlet

B = Factory Wired 115V Outlet

C = Blower Aux. Contact

D = Remote Start/Stop Terminals

E = Options A + C

F = Options A + D

G = Options B + C

H = Options B + D

J = Options A + C + D

K = Options B + C + D

L = Options C + D

Feature 5: SUPPLY AIR OPTIONS

5A: SUPPLY AIR BLOWER CONFIGURATION

P = 1 Blower + High Efficiency EC Motor

Q = 1 Blower + Inverter Rated Motor + 1 VFD

R = 1 Blower + Single Phase Motor + Speed Control

S = Option Q + Shaft Grounding

5B: SUPPLY AIR BLOWER

J = 18.5” Direct Drive Backward Curved Plenum

K = 18.5” Direct Drive BC Plenum - 60% Width

5C: SUPPLY AIR BLOWER MOTOR

A = 0.25 hp - 850 rpm

B = 0.5 hp - 1075 rpm

C = 1 hp - 1750 rpm

D = 2 hp - 1760 rpm

W = 0.75 hp - 1760 rpm

Z = 0.167 hp - 825 rpm

Feature 6: FILTERS

6A: PRE FILTER

0 = Standard - None

A = 2” Pleated - 30% Eff. - MERV 8

B = Metal Mesh Outside Air Filter

C = Lint Screen Filter

D = Exhaust Air ERW Filter

E = Option A + B

F = Option A + D

G = Option B + D

H = Option A + B + D

6B: UNIT FILTER

0 = 2” Throwaway or

2” Pleated - 30% Eff. - MERV 8

A = 2” Pleated - 30% Eff. - MERV 8

B = 4” Pleated - 30% Eff. - MERV 8

C = 2” Permanent Filter + Replaceable Media

F = 4” Pleated - 65% Eff. - MERV 11

G = 4” Pleated - 85% Eff. - MERV 13

H = 4” Pleated - 95% Eff. - MERV 14

6C: FILTER OPTIONS

0 = Standard

A = Clogged Filter Switch

B = Magnehelic Gauge

C = Options A + B

Feature 7: REFRIGERATION

CONTROL

0 = Standard

A = 5 Min. Time Delay Relay - Comp. Off

D = Adjustable Lockout

E = Freeze Stats - Each Circuit

H = Options A + D

J = Options A + E

N = Adjustable Fan Cycling with Adjustable

Compressor Lockout

Q = Options D + E

U = Options A + N

W = Options A + D + E

2 = Options N + E

6 = Options A + N+ E

RQ Series Feature String Nomenclature

VLT

CONFIG

14A

14B

- 0 0 5 - 3 - V - B B 0 1 - 3 3 4 :

0 0 0 -

0 B - P J C - 0 B

- 0

0 0 0 0 L - 0 0 - 0 0 B 0 0 0 0 0 B

Model Options

Unit Feature Options

GEN

SIZE

Feature 8: REFRIGERATION OPTIONS

0 = Standard

C = Hot Gas Reheat

D = Modulating Hot Gas Reheat

E = 0°F Low Ambient Lead Stage

M = Polymer E-Coated Hot Gas Reheat

N = Polymer E-Coated Modulating Hot Gas Reheat

V = Split System Hot Gas Reheat

W = Split System Modulating Hot Gas Reheat

3 = Split System Polymer E-Coated Hot Gas Reheat

4 = Split System Polymer E-Coated Modulating Hot

Gas Reheat

Feature 9: REFRIGERATION

ACCESSORIES

0 = Standard

A = Sight Glass

B = Compressor Isolation Valves

C = Options A + B

D = ECM Condenser Fan - Multiple Speed

E = ECM Condenser Fan – Head Pressure Control

G = Options A + D

H = Options B + D

J = Options A + B + D

K = Options A + E

L = Options B + E

M = Options A + B + E

Feature 10: POWER OPTIONS

0 = Standard Power Block

A = 100 Amp Power Switch

B = 150 Amp Power Switch

C= Power Switch (250 Amp)

G= Circuit Breaker (15 Amp)

H= Circuit Breaker (20 Amp)

J= Circuit Breaker (25 Amp)

K= Circuit Breaker (30 Amp)

L= Circuit Breaker (35 Amp)

M= Circuit Breaker (40 Amp)

N= Circuit Breaker (45 Amp)

P= Circuit Breaker (50 Amp)

Q= Circuit Breaker (60 Amp)

R= Circuit Breaker (70 Amp)

S= Circuit Breaker (80 Amp)

T= Circuit Breaker (90 Amp)

U= Circuit Breaker (100 Amp)

V= Circuit Breaker (110 Amp)

W= Circuit Breaker (125 Amp)

Y= Circuit Breaker (150 Amp)

Z= Circuit Breaker (175 Amp)

1= Circuit Breaker (200 Amp)

2= Circuit Breaker (225 Amp)

3= Circuit Breaker (250 Amp)

RQ Series Feature String Nomenclature

VLT

CONFIG

14A

14B

- 0 0 5 - 3 - V - B B 0 1 - 3 3 4 :

0 0 0 -

0 B - P J C - 0 B

- 0

0 0 0 0 L - 0 0 - 0 0 B 0 0 0 0 0 B

Model Options

Unit Feature Options

GEN

SIZE

Feature 11: SAFETY OPTIONS

0 = Standard

A = Return and Supply Air Firestat

B = Return Air Smoke Detector

C = Supply Air Smoke Detector

D = Options B + C

E = Options A + B

F = Options A + C

G = Options A + B + C

H = Remote Safety Shutoff Terminals

J = Options A + H

K = Options B + H

L = Options C + H

M = Options D + H

N = Options A + B + H

P = Options A + C + H

Q = Options A + D + H

R = High Condensate Level Switch

S = Options A + R

T = Options B + R

U = Options C + R

V = Options D + R

W = Options H + R

Y = Options E + R

Z = Options F + R

1 = Options G + R

2 = Options J + R

3 = Options K + R

4 = Options L + R

5 = Options M + R

6 = Options N + R

7 = Options P + R

8 = Options Q + R

Feature 12: CONTROLS

0 = Standard

A = Low Limit Controls

B = Phase and Brown Out Protection

C = Energy Recovery Wheel Defrost

D = Energy Recovery Wheel Rotation Detection

E = Compressor Power Factor Correction

F = Options A + B

G = Options A + C

H = Options A + D

J = Options A + E

K = Options B + C

L = Options B + D

M = Options B + E

N = Options C + D

P = Options C + E

Q = Options D + E

R = Options A + B + C

S = Options A + B + D

T = Options A + B + E

U = Options A + C + D

V = Options A + C + E

W = Options A + D + E

Y = Options B + C + D

Z = Options B + C + E

1 = Options B + D + E

2 = Options C + D + E

3 = Options A + B + C + D

4 = Options A + B + C + E

5 = Options A + B + D + E

6 = Options A + C + D + E

7 = Options B + C + D + E

8 = Options A + B + C + D + E

RQ Series Feature String Nomenclature

VLT

CONFIG

14A

14B

- 0 0 5 - 3 - V - B B 0 1 - 3 3 4 :

0 0 0 -

0 B - P J C - 0 B

- 0

0 0 0 0 L - 0 0 - 0 0 B 0 0 0 0 0 B

Model Options

Unit Feature Options

GEN

SIZE

Feature 13: SPECIAL CONTROLS

0 = Terminal Block

D = VAV Unit Controller - VAV Cool + CV Heat

E = Constant Volume Unit Controller - CV Cool +

CV Heat

F = Makeup Air Unit Controller - CV Cool + CV

Heat

J = Factory Installed DDC Controls Furnished by

Others

K = Factory Installed DDC Controls Furnished by

Others with Isolation Relays

L = Terminal Block for Thermostat Control with

Isolation Relays

W = Terminal Block for Variable Capacity

Compressor Thermostat

Y = Single Zone VAV Heat Pump Unit Controller -

VAV Cool + VAV Heat

Z = Constant Volume Heat Pump Unit Controller -

CV Cool + CV Heat

1 = Makeup Air Heat Pump Unit Controller - CV

Cool + CV Heat

2 = Single Zone VAV Unit Controller VAV Cool +

CV Heat

3 = Single Zone VAV Unit Controller VAV Cool +

VAV Heat

4 = Field Installed DDC Controls by Others

5 = Field Installed DDC Controls Furnished by

Others with Isolation Relays

6 = Factory Installed DDC Controls Furnished by

Others with Isolation Relays (SPA)

Feature 14: PREHEAT

14A: PREHEAT CONFIGURATION

0 = Standard - None

A = Steam Distributing Preheat Coil - 1 Row

C = Hot Water Preheat Coil - 1 Row

E = Modulating Electric Preheat

F = Outside Airflow Monitoring Size A

G = Outside Airflow Monitoring Size B

H = Outside Airflow Monitoring Size C

14B: PREHEAT SIZING

0 = Standard – None

A = Single Serpentine 8 fpi

B = Half Serpentine 8 fpi

E = Single Serpentine 12 fpi

F = Half Serpentine 12 fpi

G = 10 kW (7.5 kW @ 208V)

H = 15 kW (11.3 kW @ 208V)

J = 20 kW (15 kW @ 208V)

RQ Series Feature String Nomenclature

VLT

CONFIG

14A

14B

- 0 0 5 - 3 - V - B B 0 1 - 3 3 4 :

0 0 0 -

0 B - P J C - 0 B

- 0

0 0 0 0 L - 0 0 - 0 0 B 0 0 0 0 0 B

Model Options

Unit Feature Options

GEN

SIZE

Feature 15: Glycol Percentage

0 = Standard

A = 20% Propylene Glycol

B = 40% Propylene Glycol

C = Field Adjustable for Glycol Percentage

Feature 16: INTERIOR CABINET

OPTIONS

0 = Standard

B = Control Panel Service Lights

H = UV Lights

J = Compressor Sound Blanket (CSB)

K = Control Panel Service Lights + UV Lights

L = Control Panel Service Lights + CSB

M = UV Lights + CSB

N = Control Panel Service Lights + UV Lights +

CSB

Feature 17: EXTERIOR CABINET

OPTIONS

0 = Standard

A= Base Insulation

B = Burglar Bars

D = Options A + B

Feature 18: Customer Code

0 = Standard

Feature 19: CODE OPTIONS

0 = Standard - ETL U.S.A. Listing

A = M.E.A.

B = Chicago - Cool + Gas

C = Chicago - Cool + Electric Heat

D = Chicago - Cool Only

E = Chicago - Gas Only

F = Chicago - Electric Heat Only

G = Chicago - No Cool + No Heat

H = ETL U.S.A. + Canada Listing

K = California OSHPD Certification

L = Shake Table Cert. (ASCE 7-05/ICC-ES AC 156)

M = Seismic Construction (Non-Certified)

N = California OSHPD Certification + Chicago

P = Shake Table Cert. (ASCE 7-05/ICC-ES AC 156)

+ Chicago

Q = Seismic Construction (Non-Certified) + Chicago

Feature 20: CRATING

0 = Standard

A = Export Crating

B = Export Crating - No Condenser Section

C = Shrink Wrap

D = Options A + C

E = Options B + C

Feature 21: WATER-COOLED

CONDENSER

0 = Standard - None

A = Balancing Valves

B = Water Flow Switch

C = Motorized Shut-off Valve

D = Head Pressure Control

E = Options A + B

F = Options A + C

G = Options A + D

H = Options B + C

J = Options B + D

L = Options A + B + C

M = Options A + B + D

R = CuNi Coaxial Heat Exchanger

S = Options A + R

T = Options B + R

U = Options C + R

V = Options D + R

W = Options A + B + R

Y = Options A + C + R

Z = Options A + D + R

1 = Options B + C + R

2 = Options B + D + R

3 = Options C + D + R

4 = Options A + B + C + R

5 = Options A + B + D + R

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AAON RQ SERIES Installation Operation & Maintenance

Brand: AAON

Model: RQ SERIES

Category: Split-system air conditioners

Type: Installation Operation & Maintenance

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AAON RQ SERIES Installation Operation & Maintenance

AAON RQ SERIES Installation Operation & Maintenance

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